If you’re working with 3.3V or 5V circuits, it’s easy for you to throw on a power or status LED here or there. [Tom Gralewicz] has found himself in a pickle, though, often working on projects with ...

I needed a simple LED indicator showing that a particular voltage level had been reached—specifically, that a capacitor had charged to a particular potential. I was convinced that there must be a way ...

The light-emitting diode indicators, positioned just below your HP laptop monitor, report the status of the computer and its hardware. The LEDs can be useful for determining at a glance whether the ...

Computer monitors often include one or more LED indicator lights that show these devices' operating status. Monitor manufacturers can build a set of signals -- made up of sequences of LED flashes and ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The LED indicator light isn't anything new to HTC Windows Phones. As far as we can tell every ...